Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 213, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Aug 24, 2000, 3:27 AM EDT for Snyder County, Pennsylvania. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 24, 2000, 3:27 AM EDT (07:27 UTC)
- Expired
- Aug 24, 2000, 4:30 AM EDT
- In force
- 63 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Snyder County, PA
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 7.5 hours before the alert went out and 204 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 43 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1004 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KCTP 240728 SVRCTP PAC109-240830- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 327 AM EDT THU AUG 24 2000 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SNYDER COUNTY. * UNTIL 430 AM EDT. * AT 320 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER MCCLURE...OR 17 MILES NORTHEAST OF LEWISTOWN...MOVING EAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... BEAVERTOWN AT 335 AM. MIDDLEBURG AT 355 AM. FREEBURG AT 410 AM. SELINSGROVE AT 420 AM. HUMMELS WHARF AND SHAMOKIN DAM AT 425 AM. HAIL...INTENSE RAIN AND STRONG DAMAGING WINDS ARE LIKELY WITH THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER UNTIL THE STORM PASSES. $$ GRUMM
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS State College, PA wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 24, 3:20 AM EDT, 7 minutes earlier.
Area forecast discussion, Aug 24, 3:20 AM EDT, 7 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 320 AM EDT THU AUG 24 2000 TSRA CONTINUE TO FIRE OVERNIGHT ACROSS CENTRAL AND SOUTHEAST PORTIONS OF THE CWA. THESE STORMS ARE PART OF A LARGER SCATTERED LINE OF STORMS EXTENDING BACK INTO THE OHIO VALLEY. CURRENT ROUND OF STORMS FIRING ALONG A SHARP...WELL DEFINED LL INSTABILITY BOUNDARY ORIENTED E-W INTO CENTRAL PA. ALTHOUGH THERE IS NO GOOD LOW LEVEL JET FEATURE TO SUPPORT WIDESPREAD STORMS...NEW CONVECTION SEEMS TO BE SELF GENERATING...FIRING OFF OUTFLOW FROM PREVIOUS STORMS. GOOD MESO-HIGH FEATURE WAS EVIDENT EARLIER ACROSS THE LAUREL HIGHLANDS. THIS FEATURE WAS RESPONSIBLE FOR DEVELOPING SEVERAL NEW AREAS OF CONVECTION...ONE TO THE NORTH...THE OTHER TO THE SOUTH. UL JET MAX OVER SOUTHERN NYS PLACES CENTRAL AND SOUTHERN PA IN FAVORABLE RR QUAD OF JET MUCH OF THE MORNING. THIS FEATURE SINKS SOUTH TODAY WITH DIGGING UL TROF. QUESTION REMAINS HOW ACTIVE FRONT... WHICH IS STILL ACROSS NRN PORTION OF THE FA...WILL BECOME. ALTHOUGH MODELS SHOWING A PRETTY DRY SCENARIO FOR TODAY...BELIEVE CURRENT WX SHOWS JUST HOW POTENTIALLY ACTIVE WX CAN BECOME TODAY. INSTABILITY AXIS SLOWLY SINKS INTO SOUTHERN PA TODAY...WITH CAPES REMAINING ABOVE 1000 J/KG THROUGH THE DAY AND LI/S IN THE -2 TO -3 RANGE. WITH PLENTY OF OLD BOUNDARIES AROUND...AND SURFACE FRONT...ALBEIT WEAK...PRESSING INTO THE REGION...WILL GO ABOVE MOS/FAN GUIDANCE AND KEEP LOW CHANCE POPS ACROSS CENTRAL ZONES FOR THE MORNING...AND HIGHER (50) POPS FOR SOUTHERN AREAS ALL DAY. DRY WX...HIGH PRESSURE...BUILDS IN FOR THE NEXT SEVERAL DAYS AFTER FROPA. EXTENDED RELATIVELY UNCHANGED. WORK ZONES AROUND 330 AM...ZONES BY 4. .CTP...NONE. JUNG
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2000Every severe thunderstorm warning in 2000
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.